Convertible machine for grooving and sawing wood



(No Model.) 2 Sheets-Sheet 1. E. P. BARNES. CONVERTIBLE MACHINE FORGROOVING AND SAWING WOOD.

No. 404,377. Patented June 4, 1889.

N. PEYERS. PhnhrLitlwgnpher. Wahingtun. D. C.

(-No Model.) 2 Sheets--Sheet 2;

E. F. BARNES.

CONVERTIBLE MACHINE FOR GROOVING AND SAWING WOOD.

No. 404.377; PatentdJune 4, 1889.

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n PETERS. PhnhrLilhngraphur. Wnnhinglon. n. c

UNITED STATES PATENT OFFICE.

EL ERIDGE F. BARNES, OF NEIV HAVEN, CONNECTICUT.

CONVERTIBLE MACHINE FOR GROOVING AND SAWING WOOD.

SPECIFICATION forming part of Letters Patent No. 404,377, dated June 4,1889.

Application filed May 29,1886. Serial No. 203,594. (No model.)

To all whom it may concern:

Be it known that I, ELBRIDG-E F. BARNES, residing at New Haven,in thecounty of New Haven and State of Connecticut, have invented certain newand useful Improvements in Convertible Machines for Grooving and Sawing\Vood; and I do declare the following to be a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, which form a part of this specification.

My invention relates to an improvement in convertible machines forsawing and grooving wood, the object being to produce an efficient,convenient, and cheap machine.

Vith these ends in View my invention consists in certain details ofconstruction and combinations of parts, as will be hereinafterdescribed, and pointed out in the claim.

In the accompanying drawings, Figure 1 is a plan view of a machineembodying my i11- vention. Fig. 2 is a broken view thereof, partly invertical section and partly in side elevation, and showing theadjustment of the feed-wheel upon the feed-shaft when the machine isconverted for grooving; and Fig. 3 is a similar view showing theadjustment of the feed-wheel upon the feed-shaft when the machine isconverted for sawing.

The adjustable check-roller or feed-wheel consists of a collar A and acircular series of teeth B, flat on one side and conical 011 the otherside, and is provided with a set-screw C, located-in the said collar andentering a short longitudinal groove D, having tapering ends and formedabout midway the length of a horizontal feed-shaft E, upon which thefeed-wheel is loosely mounted with a capacity for longitudinaladjustment within the range of such slot, the tapering ends whereofmerge into the face of the shaft. The said feedshaft is located, with acapacity for vertical adjustment, just above and longitudinally acrossthe table F of the machine, the opposite ends of the shaft beingsupported in bearings G G, and one end being geared to a handwheel II,through which the shaft is driven. Loose collars I I, located upon theshaft on opposite sides of the feed-wheel, are employed for holding downand steadying the work to which they are adjusted as occasion demands bymoving them upon the shaft and raising and lowering the same.

A gage J, extending transversely across'the table, is provided at itsopposite ends with binders K K and set to place upon the table by meansof scales L L, formed upon the opposite edges thereof. The beveled facesof the teeth of the feed-wheel are on the side of the said gage andoperate to crowd the work against the same.

Below the table of the machine, parallel with and a little to the rearof the shaft E, is located a horizontal tool-shaft M, mounted in abearing N, having one end geared up with the hand-wheel aforesaid andthe other extending under an opening 0, formed in the table and adaptedto have a plow P or a saw Q secured to it.

A groove-gage consisting of a board R,provided with an opening S, isplaced transversely upon the table, as shown in Figs. 1 and 2 of thedrawings, when the machine is converted for grooving by securing theplow to the tool-shaft.

Fig. 2 shows a section T of lumber being grooved, as at U; and Fig. 3 ofthe drawings shows a section of lumber V from which a strip WV is beingsawed off.

WVhen the machine is converted for grooving, as shown in Figs. 1 and 2of the drawings, the feed-Wheel is set with its teeth out of line withthe plow and on the opposite side of the same and fromthe gage. This isnecessary to prevent the teeth from breaking through the bottom wall ofthe groove. The prints of the teeth are in this case left upon thelumber, but being on the reversed side thereof are not objectionable.When the machine is converted for sawing, the feed-wheel is set with theteeth in line with the saw, so that the prints made by the teeth in thewood will be removed by the saw. The short groove located about midwayof the feed-shaft provides, without weakening the same, for theadjustment of the said wheel without longitudinally shifting the shaft,which it is impracticable to adjust on account of its being supported ateach end in complicated bearings constructed and adapted to be moved forraising it above and lowering it upon the table.

I am aware that a wood-Working machine having an adjustable feed-wheelis not new, and that it is old to groove a shaft to adapt it for theadjustment of a Wheel upon it. I do not, therefore, claim either ofthese constructions, broadly; but

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

In a convertible machine for grooving and sawing wood, the combination,with a feedshaft provided with a short longitudinal groove, of acheck-roller having teeth at its edge and fiat 011 one side and conical011 the other side, and provided with a collar carrying a set-screwentering the groove in the shaft upon which the check-roller is mounted,a table F, a gage J, loose rollers I, mounted upon the shaft, movablebearings for the opposite ends of the shaft, gearing for rotating theshaft, and a tool-shaft located below the table and adapted tointerchangeably carry a grooving-plow and a saw, the described groovingof the feed-shaft and the described construction of the check-rollerpermitting the adjustment of the roller on the shaft so as to be set forrotation in line with the saw when the machine is converted for sawingand for rotation out of line with the plow when the machine is convertedfor plowing, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ELBRIDGE F. BARNES.

\Vitnesses:

JAMES G. CLARK, CHAS. B. SHUMWAV.

